GeForce GTX 470 vs Radeon HD 5450

Intro

Compare those specs to the Radeon HD 5450, which uses a 40 nm design. AMD has clocked the core frequency at 650 MHz. The DDR3 RAM works at a frequency of 800 MHz on this specific model. It features 80(16x5) SPUs along with 8 Texture Address Units and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5450		19 Watts
GeForce GTX 470		215 Watts
	Difference: 196 Watts (1032%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 470 should be much faster than the Radeon HD 5450 in general. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 5450		12800 MB/sec
	Difference: 121120 (946%)

Texel Rate

The GeForce GTX 470 is quite a bit (more or less 554%) better at AF than the Radeon HD 5450. (explain)

GeForce GTX 470		33992 Mtexels/sec
Radeon HD 5450		5200 Mtexels/sec
	Difference: 28792 (554%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 470 is superior to the Radeon HD 5450, by far. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 5450		2600 Mpixels/sec
	Difference: 21680 (834%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.